I find that with pipeline centre some things are reasonably priced, and others not.... how much should I be looking at paying roughly (off the top of your head)? I've seen some on t'inernet for £47 each (I think they were PN 10 though), but that seemed a bit steep.
Thanks for the advice Paul! Went with Pipeline centre in the end (even though I have to get them sent down from Manchester), although decided that BS10 table E flanges were better for what I'm doing.